CORNCOB (Characterizing Oil & gas & agRicultural emissions in the Northern COlorado Basin)

This dataset was collected by Colorado State University (CSU) and the National Institute of Standards and Technology (NIST). Measurements of various trace gases in Northern Colorado were collected to understand the proportion of methane present in the atmosphere that is associated with animal husbandry versus oil and gas operations. A mobile lab was used to measure methane and ammonia levels downwind of large sources, and to identify how these mixing ratios change with the distance from a source, , **Title:** CORNCOB (Characterizing Oil & gas & agRicultural emissions in the Northern COlorado Basin)

**Funding:** This work was supported by the Colorado Department of Public Health and Environment (CDPHE). 

**Keywords:** volatile organic compounds (VOCs), triggered events, integrated samples, whole air samples, Northern Colorado, air quality, air monitoring, air pollution, community-based research

**Spatial Coverage:** Northern Colorado: multiple locations and mobile measurements.

**Temporal Coverage:** 8 March 2025 - 9 April 2025

**Publications:** None as of June 2025

\**Data contact: **

Emily V. Fischer, Associate Professor, Department of Atmospheric Science. [[e-mail]](mailto:[e-mail]); 970-491-8587

We recommend contacting Emily V. Fischer ([[e-mail]](mailto:[e-mail])) for further guidance on using these datasets.

**Definitions:**

* ppmv: Parts per million volume

- ppbv: Parts per billion...,